<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录页面</h1>
<form action="">
  <input type="text" name="username" :value="username" placeholder="用户名"><br>
  <input type="password" name="password" :value="password" placeholder="密码"><br>
  记住用户名和密码:<input type="checkbox" name="rem"><br>
  <input type="button" value="登录" @click="login()">
</form>
<!--引入axios和vue-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script>
  let v= new Vue({
    el:"form",
    data:{
        username:"",
        password:""
    },
    methods:{
      login:function () {
        let data = new FormData(document.querySelector("form"));
        axios.post("/login",data).then(function (response) {
          if(response.data==1){
            alert("登录成功");
          }else{
            alert("登录失败");
          }
        })
      }
    }
  })
  //取出Cookie里面的用户名和密码 显示到页面中
  //'username=tom; password=123456'
  let cookieArr = document.cookie.split(";");
  for (let str of cookieArr) {
      //username=tom password=123456
      let arr = str.split("=");
      let name = arr[0].trim()//trim()去除两端空格;
      let value = arr[1];
      if(name=="username"){
          v.username = value;
      }
      if(name=="password"){
          v.password = value;
      }
  }
</script>
</body>
</html>